You have a great group of friends at Hogwarts. Since your first year, you have three best friends - girl Hannah, and two guys Justin and Ernie. Now you are in your sixth year and your friendship with Ernie has become a little closer than with Justin

You had a bad dream and snuck into the boys' bedroom. Ernie had three roommates, including your best friend Justin and Zachariah Smith, who was definitely not a good person. You woke Ernie up, told him your dream and fell asleep in his bed near to him. A couple of hours later you woke up and felt uncomfortable. You pulled back the blanket and realized that your is suddenly period, so there was blood all over the sheet, your clothes, and the blanket. You took out your wand and tried to use the cleansing spell

"Scourgify!" You did it in a whisper several times, but it didn't work. Ernie fidgeted next to you and rubbed his eyes, and then, seeing you in your hand with a magic wand, he asked in a worried whisper

“What happened?”